import { Router } from 'express';
import { Authenticator } from 'passport';
import { Config } from './types/config';
import { User } from './user';
export declare class OAuth {
    private router;
    private passport;
    private user;
    private config;
    static stateRequired: string[];
    constructor(router: Router, passport: Authenticator, user: User, config: Partial<Config>);
    /** Function to initialize a session following authentication from a socialAuth provider */
    private initSession;
    /** Function to initialize a session following authentication from a socialAuth provider */
    private initTokenSession;
    /** Called after an account has been succesfully linked */
    private linkSuccess;
    /** Called after an account has been succesfully linked using access_token provider */
    private linkTokenSuccess;
    /** Handles errors if authentication fails */
    private oauthErrorHandler;
    /** Handles errors if authentication from access_token provider fails */
    private tokenAuthErrorHandler;
    /** Framework to register OAuth providers with passport */
    registerProvider(provider: string, configFunction: Function): void;
    /** A shortcut to register OAuth2 providers that follow the exact accessToken, refreshToken pattern. */
    registerOAuth2(providerName: string, Strategy: any): void;
    /**
     * Registers a provider that accepts an access_token directly from the client, skipping the popup window and callback
     * This is for supporting Cordova, native IOS and Android apps, as well as other devices
     */
    registerTokenProvider(providerName: string, Strategy: any): void;
    /**
     * This is called after a user has successfully authenticated with a provider
     * If a user is authenticated with a bearer token we will link an account, otherwise log in
     * auth is an object containing 'access_token' and optionally 'refresh_token'
     */
    private authHandler;
    /**
     * Configures the passport.authenticate for the given provider, passing in options
     * Operation is 'login' or 'link'
     */
    private passportCallback;
    /** Configures the passport.authenticate for the given access_token provider, passing in options */
    private passportTokenCallback;
    private getLinkCallbackURLs;
    /** Gets the provider name from a callback path */
    private getProvider;
    /** Gets the provider name from a callback path for access_token strategy */
    private getProviderToken;
    /**
     * Gets the template file checking if a custom template was set in the provider options
     * and if the testMode.oauthTest is enabled.
     */
    private getTemplate;
}